I wasn't able to find any information about who said it or what company came out with it. But it appears to be a big money-maker with college students and young people (websites have posters, mugs, t-shirts, hats and other products with this saying for sale online).

Hi dy, I think someone must have done that in this area. I don't usually use these smileys on people I haven't interacted with yet but I just got them and use them whenever I can. On a serious note, great answer. 2 thumbs up 2 u!